Kirby practiced saxophone 2 times during the week for 1 1/2
hours. How many hours
during the week did he practice?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative

Plz : denver is about 5,200 feet above sea level. which number line best represents this integer?